Pennsylvania teachers heading out of state to find jobs. Hunting for a position as a first-grade teacher in Pennsylvania became a full-time job for Williams Township native Sarah Widmer. After Widmer graduated from Shippensburg University in 2012, she immediately began her job hunt, applying to every school district in Pennsylvania; all 500 of them.
By Definition. A single board foot of lumber measures 1 inch thick, 12 inches wide and 12 inches long. The formula for calculating board feet is first to multiply thickness by width by length -- in inches. Then divide the total by 144 for the total board footage of a given board.
A board foot is 1 inch by 1 foot by 1 foot. In other words, it is a square foot by 1 inch thick. So to figure the cost use the following equation: [square feet of area] x [inches of insulation thickness] x [cost per board foot] = [total cost for the installation].